从本世纪五十年代后期,英国和联邦德国分别为煤矿辅运工作研制了无极绳绞车牵引的卡轨车以后,卡轨车的类型不断发展,应用日益广泛,成了采煤业发达国家井下辅运系统的主要设备之一,仅英、德两国现已使用500余台。进入七十年代后期,我国煤炭系统的科研、制造部门,针对煤矿井下辅助运输这一最薄弱的环节,也开始研制适合我国 From the late fifties of this century, the United Kingdom and the Federal Republic of Germany respectively developed the railcar towed by the no-winch winch for the auxiliary work of coal mine. Since the type of railcar has been developing continuously and widely used, it has become a well- One of the main equipment of the auxiliary transport system, only Britain and Germany have now used more than 500 units. Into the late seventies, China’s coal system research, manufacturing sector, aiming at the coal mine auxiliary transport of this weakest link, also began to develop suitable for our country